\begin{table}
\centering
\begin{tabular}[t]{lcccc}
\toprule
  & NL & DE & UK & US\\
\midrule
(Intercept) & \num{1.918}*** & \num{1.839}*** & \num{1.807}*** & \num{1.691}***\\
 & (\num{0.025}) & (\num{0.023}) & (\num{0.020}) & (\num{0.024})\\
treatfac1 & \num{0.655}*** & \num{0.695}*** & \num{0.607}*** & \num{0.585}***\\
 & (\num{0.035}) & (\num{0.032}) & (\num{0.028}) & (\num{0.034})\\
\midrule
Num.Obs. & \num{2263} & \num{2506} & \num{3168} & \num{3143}\\
R2 & \num{0.135} & \num{0.158} & \num{0.128} & \num{0.087}\\
R2 Adj. & \num{0.134} & \num{0.157} & \num{0.127} & \num{0.087}\\
AIC & \num{6546.6} & \num{6517.9} & \num{7528.9} & \num{8592.9}\\
BIC & \num{6563.8} & \num{6535.4} & \num{7547.1} & \num{8611.1}\\
F & \num{352.261} & \num{469.186} & \num{463.518} & \num{298.521}\\
RMSE & \num{0.82} & \num{0.79} & \num{0.79} & \num{0.95}\\
\bottomrule
\multicolumn{5}{l}{\rule{0pt}{1em}+ p $<$ 0.1, * p $<$ 0.05, ** p $<$ 0.01, *** p $<$ 0.001}\\
\end{tabular}
\end{table}
